have you considered filename.abc --> <uuid>.abc ?if you _always_ store the original filename this should be ok.
Another alternative is to hexify the filename, then the character encoding would be irrelevant, and this is simpler than uuid (and decodable), e.g. ABC.abc ==> 414243.616263 ...there are probably problems with that (e.g. "."?) but maybe that's a useful seed for someone to think on. The first problem I see is this (at least) doubles the filename length on the filesystem.... which makes uuid a "nicer" solution from that perspective. On Tue, Apr 28, 2009 at 12:55 PM, mdipierro <mdipie...@cs.depaul.edu> wrote: > > it would give more flexibility but would not solve the original > problem. > > On Apr 28, 12:41 pm, Álvaro Justen [Turicas] <alvarojus...@gmail.com> > wrote: > > On Tue, Apr 28, 2009 at 12:00 PM, mdipierro <mdipie...@cs.depaul.edu> > wrote: > > > > > There is one issue with my solution. > > > > > If you upload a file filename.abc, it is internally renamed as lots-of- > > > junk--filename.abc > > > and you can download it with > > >http://..../download/lots-of-junk--filename.abc > > > It works on GAE too. > > > > > The problem is that URLs are validated hence filename.abc must be > > > sanitized. I sanitize by replacing any alphanumeric char in filename > > > with one underscore. This is fine for english files. This is not fine > > > with filenames with foreign charsets (like chinese). > > > > > I could replace lots-of-junk--[encoded filename].abc but this may open > > > a big can of worms. If the original file contains special chars, what > > > is the encoding? What if the downloader does not support those chars > > > in the filenames? > > > > > Any advice? > > > > Maybe SQLField can receive a function as an argument, something like > this: > > > > def myfunction(f): > > "get filename and return a customized name to my app" > > return 'myapp_' + f.split('.')[0] + '.txt' > > > > SQLField('myfile', 'upload', filename=myfunction) > > > > SQLField can verify if filename is a function, string or True/False. > > If it is a function, filename will be function(original-name) > > (function have to return a string), if it is a string, filename will > > be that string and if it is True, web2py uses original name. What do > > you think? > > > > -- > > Álvaro Justen > > Peta5 - Telecomunicações e Software Livre > > 21 3021-6001 / 9898-0141 > > http://www.peta5.com.br/ > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "web2py Web Framework" group. To post to this group, send email to web2py@googlegroups.com To unsubscribe from this group, send email to web2py+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/web2py?hl=en -~----------~----~----~----~------~----~------~--~---
